Dynamics of a harmonic oscillator coupled with a Glauber amplifier

Roberto Grimaudo, Antonino Messina, Grimaudo, Margarita A. Man'Ko, Vladimir I. Man'Ko, Messina

Risultato della ricerca: Article

3 Citazioni (Scopus)

Abstract

A system of a quantum harmonic oscillator bi-linearly coupled with a Glauber amplifier is analysed considering a time-dependent Hamiltonian model. The Hilbert space of this system may be exactly subdivided into invariant finite dimensional subspaces. Resorting to the Jordan-Schwinger map, the dynamical problem within each invariant subspace may be traced back to an effective SU(2) Hamiltonian model expressed in terms of spin variables only. This circumstance allows to analytically solve the dynamical problem and thus to study the exact dynamics of the oscillator-amplifier system under specific time-dependent scenarios. Peculiar physical effects are brought to light by comparing the dynamics of such a system with that of two interacting standard oscillators.
Lingua originaleEnglish
Numero di pagine8
RivistaPhysica Scripta
Volume95
Stato di pubblicazionePublished - 2020

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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